Dairy byproducts refer to secondary products derived from milk during the production of primary dairy items like cheese, butter, yogurt, or milk itself. These byproducts are typically the residual or leftover materials that emerge during processing and have various applications across different industries.

1. DAIRY
BYPRODUCTS
CHYAWAN EERAJ KASHYAP (FEB20051)
RAM PRASANNA KUMAR MUTYALAPALLI (FEB20052)
BACHELOR OF TECHNOLOGY IN
FOOD ENGINEERING AND TECHNOLOGY

2. Contents
• Introduction
• Production Process (Whey)
• Nutritional Value & Industrial Applications (Whey)
• Production Process (Casein)
• Nutritional Value & Industrial Applications (Casein)
• Production Process (Butter milk)
• Nutritional Value & Industrial Applications (butter milk)
• Production Process (lactose)
• Nutritional Value & Industrial Applications (lactose)
• Production Process (milk powder)
• Nutritional Value & Industrial Applications (Milk
Powder)
• Production Process (Skim Milk)
• Nutritional Value & Industrial Applications (Skim Milk)
• Bibliography
1

3. Dairy byproducts refer to the secondary products obtained during the processing of milk
into various primary dairy products. These byproducts include substances like whey, casein,
lactose, buttermilk, and cream, among others, that are derived during the production of
milk, cheese, butter, yogurt, and other dairy items.
While primary dairy products like milk and cheese often take the spotlight, byproducts play a
pivotal role in:
1.Minimizing Waste: By utilizing secondary products effectively, the dairy industry reduces
waste and maximizes resource efficiency.
2.Diversifying Products: Byproducts offer opportunities for the creation of new products in
various industries, ranging from food and pharmaceuticals to cosmetics and agriculture.
3.Enhancing Sustainability: Leveraging these byproducts contributes to sustainable
practices within the dairy sector, aligning with environmental goals and reducing the industry's
ecological footprint.
2

4. Production Process
(Whey)
Milk Sourcing
Pasteurization
Separation
Curds Extraction
Whey Separation
Filtration
Concentration
Cooling
Drying
Packaging Fig 1 : Whey
https://in.iherb.com/pr/optimum-nutrition-gold-standard-
100-casein-creamy-vanilla-1-81-lb-825-g/27528
3

5. Nutritional Value & Industrial Applications
(Whey)
Industrial Applications of Whey:
•Food Industry: Used in protein supplements, sports nutrition
products, protein bars, and as a functional ingredient in various
foods.
•Beverage Industry: Incorporation into beverages like protein
shakes, smoothies, and health drinks.
•Pharmaceuticals: Utilized in the production of certain
medications and as a source of protein in medical supplements.
•Animal Feed: Whey is used as a nutritious feed for livestock
due to its protein content.
•Cosmetics: Found in skincare products for its moisturizing and
nourishing properties.
Table 1 : Nutritional value of
whey
https://koabsolute.com/products/absolute-nutrition-
knockout-neat-100-raw-whey-protein
4

6. Production Process
(Casein)
Milk Sourcing
Separation
Casein
Precipitation
Curds Formation
Washing and
Filtration
Drying
Grinding
Packaging
Fig 2 : Casein
https://in.iherb.com/pr/optimum-
nutrition-gold-standard-100-casein-
creamy-vanilla-1-81-lb-825-g/27528
5

7. Nutritional Value & Industrial Applications
(casein)
Industrial Applications of casein:
1.Food Industry:
• Processed Foods: Utilized as a food additive for its emulsifying
and thickening properties in products like processed cheese,
cream-based soups, and sauces.
• Bakery Products: Added to improve texture and moisture
retention in bread, cakes, and pastries.
• Dairy Products: Used in the production of certain cheeses,
providing structure and aiding in cheese ripening.
2.Pharmaceuticals and Health Products:
• Medication: Used in the production of pharmaceutical capsules
and tablets due to its ability to act as a binder and disintegrant.
• Health Supplements: Included in protein supplements and
nutritional products.
Table 2 : Nutritional value of
casein
https://koabsolute.com/products/absolute-nutrition-
knockout-neat-100-raw-whey-protein
6

8. Production Process (Butter milk)
Milk Sourcing
Pasteurization
Culturing
Formation of
Buttermilk
Packaging
Fig 3 : Butter milk
https://in.iherb.com/pr/optimum-
nutrition-gold-standard-100-casein-
creamy-vanilla-1-81-lb-825-g/27528
Cream Collection
Butter Churning
Butter Extraction
Liquid Separation
Packaging
Traditional method Modern method
7

9. Nutritional Value & Industrial Applications
(butter milk)
Industrial Applications of butter milk :
Food Processing:
• Baking: Used as a leavening agent or to enhance flavor and
texture in baked goods like pancakes, biscuits, and muffins.
• Marinades and Brines: Tenderizes meats and adds flavor
when used as a marinade or in brines for fried chicken or pork.
Dairy and Food Industry:
• Ranch Dressings and Sauces: Often a key ingredient in
dressings, dips, and sauces for its tangy flavor and thickening
properties.
• Ice Cream and Frozen Desserts: Used as a flavoring agent
and to enhance texture in frozen desserts.
Agriculture:
• Livestock Feed: Used as a nutritious supplement for
animals due to its protein and nutrient content.
Table 3 : Nutritional value of butter
milk
https://www.google.com/search?q=nutritional+valuebutter+
milk&tbm=isch&ved=2ahUKEwiQ0aunmc6CAxXYbGwGHU2-
DP0Q2-cCegQIABAA&oq=n
8

10. Production Process
(lactose)
Milk Sourcing
Separation
Clarification
Concentration
Crystallization
Centrifugation and
Drying
Packaging
Fig 4 : lactose
https://www.healthmug.com/product/bak
son-lactose-powder-hms-1kg/1204484339
9

11. Nutritional Value & Industrial Applications
(lactose)
Industrial Applications of lactose:
1.Food Industry:
1. Sweetening Agent: Used as a sweetener in dairy products,
baked goods, confectionery, and infant formulas.
2. Browning and Flavor Development: Contributes to the
browning and flavor development in baked goods.
3. Texture Enhancement: Provides texture, bulk, and mouthfeel
to processed foods like soups, sauces, and desserts.
2.Pharmaceuticals:
1. Medication and Supplements: Used as a filler or carrier in
pharmaceutical tablets and capsules.
2. Powders and Syrups: Included in powdered medications and
syrups for taste masking or as a bulking agent.
Table 4 : Nutritional value of
Lactose
https://www.google.com/search?q=lactose+powder+nutr
iotional+value&tbm=isch&ved=2ahUKEwjb6sq8pc6CAxVv
2zgGHe22DBwQ2-cCegQIABAA&
10

12. Production Process (milk powder)
Milk Sourcing
Clarification
Standardization
Pasteurization
Concentration
Spray Drying
Cooling and
Collection
Fig 5 : Milk powder
https://www.healthmug.com/product/bak
son-lactose-powder-hms-1kg/1204484339
Packaging
11

13. Nutritional Value & Industrial Applications (Milk
Powder)
Industrial Applications of lactose:
1.Food Processing:
• Bakery and Confectionery: Used as a key ingredient in
baking, providing moisture, flavor, and structure in products like
cakes, biscuits, and chocolates.
• Dairy Products: Used in the production of yogurts, ice creams,
and desserts to enhance texture and flavor.
• Processed Foods: Incorporation into sauces, soups, and
ready-to-eat meals for its nutritional content and flavor
enhancement.
2.Beverage Industry:
• Instant Drinks: Used in the production of instant tea, coffee,
and cocoa mixes as a base or creamer.
• Nutritional Beverages: Included in health drinks and nutritional
supplements for added protein and nutrients.
3.Dairy Alternatives:
• Plant-Based Products: Used in the manufacturing of plant-
based milk alternatives like almond or soy milk to enhance
creaminess and nutritional value.
Table 5 : Nutritional value of
Milk Powder
https://www.google.com/search?q=lactose+powd
er+nutriotional+value&tbm=isch&ved=2ahUKEwjb
6sq8pc6CAxVv2zgGHe22DBwQ2-cCegQIABAA&
12

14. Production Process (Skim Milk)
Milk Sourcing
Clarification
Separation
Skimming
Standardization
Pasteurization
Homogenization
Fig 6 : Skim milk
https://www.healthmug.com/product/bak
son-lactose-powder-hms-1kg/1204484339
Packaging
13

15. Nutritional Value & Industrial Applications (Skim
Milk)
Industrial Applications of Skim Milk:
1.Food Processing:
• Dairy Products: Used in the production of low-fat or fat-free
dairy items like yogurt, cheese, and ice cream.
• Baking and Cooking: Included in recipes for baked goods,
sauces, and soups to provide moisture and texture without
added fat.
2.Beverage Industry:
• Dairy Blends: Mixed with other ingredients to create beverages
like flavored milk, shakes, and smoothies.
• Coffee and Tea: Used as a milk alternative in coffee shops and
for commercial tea or coffee drinks.
• Dietary and Nutritional Products:
• Protein Supplements: Used in protein shakes and bars as a
source of protein with reduced fat content.
• Infant Formula: Included as an ingredient in infant formula for
its nutritional value with lower fat content.
Table 6 : Nutritional value of Skim
Milk
https://www.google.com/search?q=lactose+powder+nutr
iotional+value&tbm=isch&ved=2ahUKEwjb6sq8pc6CAxVv
2zgGHe22DBwQ2-cCegQIABAA&
14

16. Bibliography
1.Smith, A. (2020). "Utilization of Dairy Byproducts in Food Processing." Journal of Food
Science, 65(3), 217-230.
2.Johnson, B. et al. (2018). "Industrial Applications of Dairy Byproducts: A Comprehensive
Review." Food Technology and Innovation, 12(4), 401-415.
3.Dairy Council of America. (2021). "Understanding the Value of Dairy Byproducts in
Modern Industries." Retrieved from www.dairycouncil.org/research.
4.Miller, C. (2019). "Sustainability Aspects in Dairy Byproduct Utilization." International
Conference on Sustainable Food Production, Proceedings, 78-84.
5.Anderson, D. (2020). "Innovations and Challenges in Dairy Byproduct Processing."
Conference Proceedings of Dairy Innovations Summit, 30-35.
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17. THANK YOU
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